Seagate ST905003N3A1AS Momentus 7200.4 SATA Product Manual - Page 20

2.12 Electromagnetic immunity When properly installed in a representative host system, the drive operates without errors or degradation in performance when subjected to the radio frequency (RF) environments defined in the following table: Table 6: Radio frequency environments Test Electrostatic discharge Radiated RF immunity Electrical fast transient Surge immunity Conducted RF immunity Power Frequency H-field immunity Voltage dips, interrupts Description Performance level Contact, HCP, VCP: ± 4 kV; Air: ± 8 kV B 80 to 1,000 MHz, 3 V/m, A 80% AM with 1 kHz sine 900 MHz, 3 V/m, 50% pulse modulation @ 200 Hz ± 1 kV on AC mains, ± 0.5 kV on external I/O B ± 1 kV differential, ± 2 kV common, AC mains B 150 kHz to 80 MHz, 3 Vrms, 80% AM with 1 kHz A sine 1 A/m, 50Hz/60Hz, 3 axes A Reference standard EN 61000-4-2: 95 EN 61000-4-3: 96 ENV 50204: 95 EN 61000-4-4: 95 EN 61000-4-5: 95 EN 61000-4-6: 97 EN 61000-4-8: 97 30% Reduction for 25 cycles >95% Reduction for 250 cycles >95%, 0.5 cycles C EN 61000-4-11: 94 C B 2.13 Reliability Measurement type Nonrecoverable read errors Annualized Failure Rate (AFR) Load/Unload (U/UL) 25°C, 50% relative humidity 32°C, 80% relative humidity 5°C, 80% relative humidity 5°C, 10% relative humidity 55°C, 16% relative humidity Warranty Specification 1 per 1014 bits read, max. 0.5% 600,000 software-controlled power on/off cycles 50,000 hard power on/off cycles 600,000 software-controlled power on/off cycles 50,000 hard power on/off cycles For information regarding Warranty Support, visit http://www.seagate.com/www/en-us/support/warranty_&_returns_assistance 2.13.1 Free Fall Protection feature The Free Fall Protection feature provides enhanced data protection against shock events that may occur while the drive is operating. This feature is designed to decrease the likelihood of data loss by detecting a free fall event and unloading the actuator before a shock takes place in falls of >8 inches (nominal). The drive uses a 0G sensor mounted on the printed circuit board assembly (PCBA) to sense this event. To enable the Free Fall Protection feature on ST9500420ASG, ST9320423ASG, ST9250410ASG, ST9160412ASG, ST9120410ASG and ST980412ASG models, use Set Features command 41h. To disable this feature, use Set Features command C1h. Information about Free Fall Events that have occurred is available through SMART Attribute FEh. Note. The Free Fall Protection feature is provided only on ST9500420ASG, ST9320423ASG, ST9250410ASG, ST9160412ASG, ST9120410ASG and ST980412ASG models. 14 Momentus 7200.4 SATA Product Manual, Rev. C